conditionally load jQuery-UI

      /* only load jQuery-ui if not present */  
      if (typeof jQuery.ui == 'undefined') {  
           document.write("<script type=\"text/javascript\"  src=\"http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.2/jquery-ui.min.js\"></"+"script>");  
           //var __noconflict = true;  
      }  
      /* if Google is down */  
      if (typeof jQuery.ui == 'undefined') {  
           document.write("<script type=\"text/javascript\"  src=\"webCentral/script/jquery-ui.min.js\"></"+"script>");  
           //var __noconflict = true;  
      }